Thread-supporting device



Nov. 20, 1928. 1,692,132

M. L. MARTZ THREAD SUPPORTING DEVI'CE Filed July 2, 1924 4' i i l 3 wuemtoz Patented Nov. 20, 1928.

UNITED STATES PATENT OFFICE.

MORRIS L. MARTZ, on NEW YORK, N. Y.

THREAD-SUPPORTING DEVICE.

Application filed July 2, 1924. Serial No. 723,721.

This invention relates to thread supporting devices.

In the clothing making industry and knitting arts there are large volumes of thread used and this thread is usually carried on very large spools holding ten thousand yards or more. In the use of the thread from such spools it frequently occurs that in the unwinding of the thread it becomes caught beneath the spool and it is necessary for the operator to lift the spool and disentangle the thread, This is particularly true where the spool is rotatable or where there is no contact of appreciable degree between the bottom of the spool and the support therefor.

The object of the invention is to provide a construction in which the core of the spool is put under compression so that the outer edges of the body of thread are slightly compressed to prevent a thread from passing beneath the body of the spool of thread.

A further object is to provide a construction in which the spool is rigidly held so that it can not be displaced.

A further object is to provide means for forming a cushion underneath the spool and for the adjustment of the spool as the thread is gradually unwound from the outer circumference.

A further object is to provide a construction which may be firmly secured to a table so that the vibration of the ordinary operation does not affect it.

The invention consists of the construction, combination, and arrangement of parts, as

herein illustrated, described and claimed.

In the accompanying drawings, forming part hereof, is illustrated aform of embodiment of the invention, in which drawings similar reference characters designate corresponding parts and in which:

Figure 1 is a side elevation; Figure 2 is a verticaLsection taken centrally of the construction shown in Figure 1; and

Figure 3 is a vertical transverse section through the compression cap used by the applicant. I

Referring to the drawings A designates ordinary base of castmetal now in ordinary use. B designates a thread guide which may be held in position by means of nuts 6 and b or a set-screw 6 None of this construction is claimed specifically by applicant, and is illustrated merely to show the ordinary form of support, applicants device being adapted to be used in connection therewith or separate.

1 designates a base of spun metal having a curved bowl 2 and formed with a depending vertical flange 3 and a horizontal flange 4. The flange 4 is provided with a plurality of openings 5 so that the base may be secured to the wooden surface of a sewing or knitting machine, so that no vibration occurs in the device.

Adjacent to its center the bowl :2 is provided with a circular channel 6 adapted to receive the core of the ordinary spool when the thread is nearly used up and the core is compressed to its fullest extent.

An opening is formed adjacent to the outer periphery of the spool 2 and is adapted to receive the screw threaded end of a thread supporting standard 8 so that nuts 9 may be used to firmly secure the standard directly to the bowl, without the interposition of the ordinary cast iron support A now commonly used in the art.

A round vertical mandrel 10, preferably hollow in construction has its lower end secured to the bowl 2. This mandrel is formed for the purpose of giving lightness to the construction and is preferable over a solid mandrel.

The mandrel 10 is provided with a screw threaded upper end 12 adapted to receive an interiorly threaded nut 13, formed with a depending flange 14 so as to leave a shoulder 15. The shoulder 15 acts asa compressing surface on the core of the spool-hereafter described.

Disposed'on the upper surface of the bowl 2 is a body of compressible material 16, such as felt, cardboard etc. so that when the spool is compressed its outer periphery is firmly brought into the body of compressible material and thereby prevents a single thread from passin beneath the spool and becoming entangled.

In the art the spools of thread as sold usually comprise a hollow core C on which is wound a. body of thread D. The mandrel 10 of this invention is made of an. outside diameter so that the core C is tightly held on by friction so that the spool will not rotate by pulling on the thread D, thereby providing a non-rotatable form of construction for the spool. .With a full spool of thread D ible pad 16and as the work proceeds and the size of the body of thread D decreases the nut 13 may be advanced until when the thread is almost exhausted the lower end of thecore will force the body of compressible material 16 into the channel 6.

Having-thus fully described the invention the base and a compressing means arranged to cooperate with the mandrel to engage the core of the spool of thread and maintain a pressure of thread on the base.

2. A device of the character described comprising a bowl, a vertical mandrel mounted on the bowl and adapted to support a spool of thread with the thread engaging the bowl, compressing means on the mandrel at the upper end thereof for engaging the spool of thread to maintain a pressure or the thread against thebowl and a thread guide carried by the bowl.

3. A device of the character described comprising a'rigid base, a supporting member mounted on the base and provided with screw threads and adapted to support a spool of thread with the thread engaging the base and an interiorly screw threaded compressing member disposed on the supporting member and arranged to engage the spool of thread for maintaining a pressure, of the thread on the base.

4; A device of the character described comprising a rigid base, a vertical mandrel mounted on the base and provided with screw threads and adapted to support a spool of thread with the'threa'd in engagement with the base and a screw threaded nut on the mandrel provided with a shoulder arranged to engage the core of the spool of thread, said nut being also provided with an annular flange extending from the shoulder and arranged to receive the engaged end of the said core.

5. A device of the'character described comprising a base, a vertical mandrel mounted on the base, a compressible member disposed on the base around the mandrel and adapted to be engaged by the thread of a spool of thread supported by the mandrel and a compression member disposed on the mandrel andarranged to engage the spool of thread for maintaining the pressure of the thread against the pad.

6. A device of the character described comprising the rigid base having a curved upper surface, a compressible body disposed on the upper surface, a vertical supporting member mounted on the base and a compression member disposed on the supporting member and arranged to engage a spool of thread supported by the said supporting member and maintain a pressure of the thread against the compressible body 7. A device of the character described, comprising a rigid base, a compressible member" on the base, supporting means mounted on the base and arranged to support a spool of thread with the thread in engagementwith the compressible member, and means on the supporting means for compressing and securing a spool of thread when disposed on the supporting means whereby the pressure of the thread against the base is maintained.

8, A device of the character described, comprising a rigid base consisting of a bowl having a downwardly extending peripheral supporting flange and provided with a depression forming a cavity at the center of the bowl, a vertical mandrel secured in the cavity of the bowl and provided at its upper end with screw threads, a compressible material arranged upon the bowl around themandrel, the latter being adapted to support a spool of thread with the thread in engagement with the compressible material, and a nut mounted on the upper end of the mandrel and having an annular flange arranged to engage over the core of the spool of thread, said nut-being adapted to produce a pressure of the thread against the compressible material.

Signed at New York, in the county of New I York and State of New York this 14th day of June, A. D., 1924.

MORRIS MARTZ. 

